privacy-policy

Privacy statement

Last updated: 11 August 2026

Spreadsheet to Markdown has one purpose: convert the used area of the active Google Sheets tab into a Markdown table requested by the user.

Data accessed

When the user presses Convert sheet, the extension temporarily accesses:

• the active Google Sheets document and sheet identifiers, read from the tab URL;
• the name of the active sheet tab, read from the page;
• the values of that sheet, as displayed, downloaded from the CSV export of the spreadsheet.

The export is requested by the browser itself from docs.google.com, using the Google session the user is already signed in with. The extension never asks for credentials, never obtains an OAuth token, and never sees the session cookies.

Use and retention

The data is used only to create the requested Markdown table. Conversion occurs inside the extension. Spreadsheet content and generated Markdown are held only in volatile memory. For a large table, one snapshot may be retained briefly while its confirmation prompt is open; it is consumed or expired without being written to persistent storage.

The extension stores only the user’s non-sensitive preference for treating the first row as a header. It does not store spreadsheet values, document titles, document identifiers, or generated Markdown.

Sharing and telemetry

The extension has no analytics, advertising, telemetry, developer-operated backend, or third-party data processor. Spreadsheet data travels only between Google Sheets and the local extension instance required to fulfill the user’s action. No user data is sold or shared.

Logging

Diagnostics use stable error categories only. Spreadsheet values, generated Markdown, document titles, and document identifiers are never written to logs.

Permissions

The extension requests no OAuth scope and declares no host permissions. It reads the sheet only through activeTab and scripting, which grant access to a single tab, only when the user acts on it, and only for that action.

Users can remove all locally stored extension data by uninstalling the extension. Signing out of Google in the browser also stops the extension from reading any sheet.